402 



TRANSACTIONS OF THE 



WORK PERFORMED BY THE FOLLOWING STEAM 



MINES. 



ENGINE, 

 and the 

 diameter 

 of the cylinder. 



Length 

 of the 

 crank 



Length 

 of the 

 stroke, 

 in the 

 cylin- 

 der. 



Diam- 

 eter of 

 the fly 

 wheel. 



Number 



of 

 liecids. 



Time. 



Consump- 

 tion of 

 coal, in 

 bushels. 







Wheal Vor 



Old Stamps, 

 24 inches, 

 double. 



feet 

 3 



feet 

 6,5 



feet 

 12 



34 



Aug 30 



to 

 Sep 27 



875 



Ditto 



South 

 Stamps, . 

 27 inches, 

 double. 



2,5 



5 



15 



48 



ditto 



1126 



Ditto 



Bratt's 

 Stamps, 

 16^ inches, 

 double. 



2,5 



5 



14,5 



24 



ditto 



1193 



Ballas- 



WIDDEN 



24 inches, 

 double. 



2,5 



=„.^_^ 



5 



13 



32 



Aug 27 



to 

 Sep 24 



768 



The North engine at Great St George has had leaky boilers ; and the 



exposed ; and also Truran's 



Average quantity of Water per minute, drawn from the Mines, in Sep- 

 tember 1834. 



MINES. 



Imperial 

 Gallons. 



MINES. 



Imperial 

 Gallons. 



Wheal Unity Wood 



289,94 



Fowey Consols, Austen's 



227 



Wheal Damsel 



76,06 



Lanescot, Sawle's engine 



57,6 



Wheal Jewell 



33,34 



Roche Rock Mine 



237,46 



Cardrew 



250,46 



Wheal Leisure 



549,26 



Dolcoath 



175,6 



Great Saint George 



596,68 



Stray-Park 



68,1 



Wheal Vor and Carleen 



769,92 



East Wheal Crofty 



136,9 



Great Work 



257,24 



Wheal Tolgus 



485,82 



Wheal Prudence 



128,1 



Binner Downs 



606,88 



Retallack and Hallamaning 



307,47 



Marazion Mines 



313,89 



Relistian 



156,47 



Saint Ives Consols 





Wheal Darlington 



948,84 



Wheal Reeth 



60,5 



Ballaswidden 



56 



Consols 



1458,98 



Levant 



19,32 



United Mines 



575,86 



Ding-dong 



27 



Wheal Beauchamp 



217,42 



North Roskear 



141 



Polgooth 



605,43 



South Roskear 



155,86 



Pembroke 



472,49 



Wheal Virgin 



126,45 



East Crinnis 



499,05 





